Thursday, August 11, 2005

Independent Online Edition > Science & Technology : app3

"Mysterious knotted strings used by the Incas to control their sprawling South American empire may have been ledgers for their accountants to keep track of payments to the king.":

Comments: Post a Comment

Subscribe to Post Comments [Atom]





<< Home

This page is powered by Blogger. Isn't yours?

Subscribe to Posts [Atom]